package jdbc0830;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class JDBCDemo3 {
    public static void main(String[] args) throws SQLException, ClassNotFoundException {
        /*
        Class.forName("com.mysql.cj.jdbc.Driver");
        Connection connection= DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "ROOT"
        );
        System.out.println("与数据库成功链接");

         */

        try(Connection connection = DBUtil.getConnection()) {


            Statement statement = connection.createStatement();
            String sql = "UPDATE userinfo " +
                    "SET password=88888888 " +
                    "WHERE username='JONE'";

            int num = statement.executeUpdate(sql);
            if (num > 0) {
                System.out.println("修改成功");
            } else {
                System.out.println("修改失败");
            }
            connection.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }

    }
}
